Spring-forming machine.



S. B. FINEGAN.

SPRING romm MACHINE.

APPLICATION FILED FEB. I3, IQII. 92769639, Patented Aug. 20, 1918.

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S. B. FINEGAN.

SPRING FORMING MACHINE.

APPucATxoN FILED 55.13. 1911.

l 276,639 o Patented Aug. 20, 1918.

2 SHEETS-SHEET 2.

Www-eww SAMUEL B. EINEGAN, 0F EUGENE, OREGON.

SPRNGFORMIN Gr MACHINE.

Specicaton of Letters Patent.

ratentea aug. ao, 1ere.

Application led February 13, 1917. Serial No. 148,358.

.To all 'whom t may concern:

Be it known that I, SAMUEL B. FINEGAN, a citizen of the United States, residing at Eugene, in the county of Lane and State of Oregon, have invented new and useful vImprovements in Spring-Forming Machines, of which the following is a specification.

lt is the primary object of this invention to provide a machine'for forming vehicle springs to a regular or irregular pattern in a quick and convenient manner.

Thefollowing description is addressed to the use of the machine in the formation of vehicle springs, which is believed to be suficiently characteristic of its utility and admirably illustrates the invention, but it is desired to have it understood that the machine is susceptible for use in other metal forming capacities, and its general application is contemplated by the claims.

ln carrying out the invention I provide the table or support for the work with an adjustment to accommodate itself to materials of different dimensions.

ln the drawings forming part of this specification like numerals of reference indicate similar parts in the several views and wherein Figure 1 is a top lan view.

Fig. 2 is a vertical transverse sectional view.

Fig. 3 is a longitudinal sectional view.

Fig. 4.- is a detail yview of one of the brackets and cam lever.

Fig. 5 is a detail view of one of the engaging clips. b Fig. 6 is a fragmentary view of the angle Fig. 7 is a fragmentary detail view of one of the plungers.

The remaining gures are detail views of several of the parts.r l

llhe preferred embodiment of the invention herein illustrated consists of a table constituting the work support, and including the legs 10 which are connected by the transversely and longitudinally disposed brace bars 11 and 12 respectively, and a top 13 whose width is such as to terminate short of one side of the structure as a unit. Mounted upon the top 13 adjacent one edge is a plurality'of U-shaped clips 14 disposed in spaced relation and each having slidably tted therebetween and the top 13 a substantially L-shaped arm 15, the arms colspring lectively constituting a support for the pattern 16 which in this particular instance consists of a substantially semi-elliptical metallic band. The arms 15 are independently movable to assume different positions relatively depending upon the particular design of pattern which they are to support. A. heated spring leaf or other piece of material 17 is placed upon the table top to bear against the intermediate portion of the pattern 16 to be formed to fit the pattern through the instrumentality of a plurality of plunger rods 18 which are mounted to slide transversely across the table top 13 and brought into engagement with the spring leaf 17, thereby forcing the latter into engagement with the pattern to be shaped in a like manner. Spaced angle bars 19 extend longitudinally of the table in parallelism, and constitute supports for the plunger rods, which latter slide through suitable openings in the vertical flanges of the angle bars. A dat equalizing spring is indicated at 2O and normally disposed adjacent the outermost angle bar 19 in parallelism therewith. Mounted upon the equalizing spring is a plurality of brackets 21, there being one bracket for each plunger rod, and each bracket having a slot 22 receiving the equalizing spring 20. The bracket projects above the equalizing spring and is provided with an opening 22 disposed in a line with the openings in the vertical flanges of the angle bars 19, whereby the plunger rods 18 vare mounted to slide through the opening 23 of its respective bracket. In this manner the plunger rods are independently adjustable transversely of the table top 13 so as to give. to the spring leaf 17 a uniform or regular configuration consistent with the particular pattern after which the leaf is to be designed. Pivotally mounted on each bracket 21 is a cam shaped lever 24 which when brought into engagement with the plunger rod 18 holds the latter ixed in its adjusted position.

A shaft 25 is disposed beneath the table top, and mounted for partial rotation, and xed upon said shaft and projecting forwardly therefrom is a pair of spaced levers 26, having their forward extremities connected through the instrumentality of a bar 27. Disposed in juxtaposition to each of the levers 26 is a lever 28 fixed upon the shaft 25 and rising therefrom, the upper extrernityv` oieach lei'er 2S tiring pivotal connection with an arno 29 which projects rearwardly from the lever 28 and opeiatirelj,Y connected with a clip 30 secured to the equalizing` spring Q0. ln other words the arms 29 provide a connection between the levers Q8 and tliewequalisinpj spring so that When the shaft 25 is rotated in one direction the equalizingspring,` is brought forwardly forcing1 the plunger rods lS against the heated? spring leaf l?, or other` piece of material to be Worked, causing the latter to assuine a configuration similar to the pattern 16. lt is orP course inanitest that theshatt 25 is rotated in the proper direction tooperate the plunger rod ltlbjy de.- pressing the loar Q7, either by hand or by toot, and when the bar il? is relieved of this pressurc, the springs SO haring their correspending` extremities secured. to lined supports 3l and their opposite extremities secured to a lever 32 iixed upon the opposite extremity ot' the shatt Q5, operates to automatically return the component parts ot the inachine to their norinal or inactive position.

The table top 13 can be quickly,v1 and easil)v raised or lowered through the instrumentality of the screws -t to acconnnodate ditiierent Widths ot springs or other material to be Worked upon, the screws Eil beingl connected with the top 13 and threaded through suitable brackets 3l disposed adjacent each ofVV the tour corners ot the top as shown.

-lllhile it is believed that :troni the toregoing descriptiony the nature and advantagesof the invention will be readiliY apparent l desire to have it understood that what is herein shown and described is merely illustrative ot the preferred einhodiinent ot the invention to which l do not liinit Inyseity and that such changes in the construction and arrangement otn parts ina;7 be resorted to- `when desired as tall Within the scope of 1what is claiined.

What is claimed is1- l. metal forming inachine comprising` support, a pattern mounted thereonj spaced parallel apertured guicles,` llinger rods arranged to slide through said guides, an

,averse equaliser spring disposed edgewise beneath andinparallelisni With said guides, a ineinber for each rod having a bifurcated trennt).7 stiaddlingA said spring,1 said ineniber haring' anopening in which said rod slides, said rods being` susceptible ot independent. adjustment relatively, a cani associated with said ineinber and engaging said rod in: holding the latter lined in its adjusted position, and means tor moving said rods in unison toward and away troni said patrI ern.

L. l niet-al `forming niachine comprising a support a pattern. mounted thereon, spaced parallel guides, a pluralitgf1 of plunger rods mounted to slide through said guides. an equalizer spring disposed beneath and in parallelism with said guides, a ineinher for each rod, secured to said springv and having an opening; through which said rod passes, said rods beingl susceptible ot independentrelative adjustment., means carried by said nieinber for engagement with said rod tor holding the latter in its adjusted position, and ineans tor moving said rods in unison toward and aWajg7 troni said pattern.

l-i instal forming machine comprising a support. a pattern mounted thereonv1 a plurality ot spaced plunger rods mounted tor increment toward and away Jtroni said pattern, guides for said rods, an equalizer spring disposed in parallelism with said guides, a connection between said spring and each of said; rods for holding the latter fired relatively*` to said spring, a shaft ionrnaledv on the support beneath said rods, levers projecting upn'arddjT troni said shaft adiacentiv the oppositeends thereof, members secured to the spring at spaced intervals, an arm pivot-allg7 associated with the upper extremity ot each lever and haring connection with the adjacent member on spring, "whereby the rods are actuated toward the pattern when the shatt is rotated in one direction, nieans tor rotating the shaft in sais direction,l and means for Vautomatically7 reversing' the rom and returning` said tation ot said shalt-s rods to normal position.

'in testimony 'Whereot l? signature.

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